Astronomy

Look for moon moving toward Jupiter before dawn August 2

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Earthsky.org, 8/1/13, Deborah Byrd

The waning crescent moon shines between the planet Jupiter and the star Aldebaran before dawn on Friday, August 2

Here are two bright morning objects, easily seen on the sky’s dome in the predawn and dawn hours: the planet Jupiter and the moon. As seen from around the world tomorrow morning, on Friday, August 2, the moon will be shining between the dazzling planet Jupiter and Aldebaran, the brightest star in the constellation Taurus the Bull. Then keep watching for several more mornings! On the next morning – Saturday, August 3 – note that the moon has moved away from Aldebaran and closer to Jupiter. On Sunday morning, August 4, the scene will have shifted slightly again.

Star of the week: Vega is the Harp Star

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Earthsky.org, 7/24/13

Observers in the Northern Hemisphere can see the star Vega come into view in the northeast in mid-evening in May. Look for this star in the very early evening in June – high overhead on autumn evenings – in the northwestern quadrant of the sky on December evenings

Eyes on the Sky: July 22 thru July 28 (video)

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Eyesonthesky.org, 7/23/13

Published on Jul 21, 2013

www.eyesonthesky.com Eyes on the Sky turns 100! Take a look back at the evolution of Eyes on the Sky since its start in early 2011, and how it has changed, helped viewers find and observe all kinds of objects in the night sky, and a lot of fun and silly things it has done along the way to help educate about astronomy and light pollution. See what's up in the night sky every week with "Eyes on the Sky" videos, astronomy made easy.

The Antikythera Mechanism

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The Antikythera Mechanism is an ancient computer used to calculate astronomical positions. It is a true wonder of ancient times. This short video reveals details of the device and it's functions.

Eyes on the Sky: July 8 thru July 14

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Eyesonthesky.com, 7/7/13

Published on Jul 7, 2013

www.eyesonthesky.com With shorter nights and longer days, what better time to see the closest star to Earth than during summer!? Visual solar filters are not very expensive, and because there is plenty of light (with a filter!), telescopes as small 50mm or 60mm are just fine for solar observing. Find out what to see (and what you can see on the Sun this week!) and look for whenever you do solar observing, and also learn about specialized filters for viewing solar flares and prominences. See what's up in the sky every week with "Eyes on the Sky" videos, astronomy made easy.

 

Star of the week: Antares is Heart of the Scorpion

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EarthSky.org - 7/2/13

Antares and M4 image by stargazerbob@aol.com

On summer evenings, you can spot red Antares, the ruby Heart of Scorpius the Scorpion. It is the 16th brightest star and one of the most gigantic stars known.

Bright reddish Antares – also known as Alpha Scorpii – is easy to spot on a summer night. It is the brightest star – and distinctly reddish in color – in the fishhook-shaped pattern of stars known as the constellation Scorpius the Scorpion.

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July 2013 guide to the five visible planets

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EarthSky.org, 7/1/13, and

Saturn and rings

Two planets appear in the July evening sky all month long: Venus and Saturn. Venus beams in the west at dusk, and sets roughly one and one-half hours after sunset all month long at mid-northern latitudes. Saturn shines moderately high in the south to southwest at nightfall and stays out all evening long. While these two worlds should be pretty easy to spot in the evening sky all throughout July 2013, the morning planets won’t really become very noticeable until the second half of the month.

The waxing crescent moon the the dazzling planet Venus adorn the evening twilight on July 10.

Meteor Activity Outlook for June 29-July 5, 2013

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Amsmeteors.org, 7/1/13,

http://www.amsmeteors.org/wp-content/uploads/2013/06/10pm3-700x666.jpg

Meteor season finally gets going in July for the northern hemisphere. The first half of the month will be much like June. After the 15th though, both sporadic and shower rates increase significantly. For observers in the southern hemisphere, sporadic rates will be falling but the overall activity will increase with the arrival of the Delta Aquariids during the last third of the month.

Eyes on the Sky: July 1 thru July 7

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Eyesonthesky.com, 6/30/13

Published on Jun 30, 2013

www.eyesonthesky.com Aquila the Eagle straddles the Milky Way, and the brighter stars in this constellation have some fascinating mythology AND science surrounding them. Learn about Altair, Tarazed and Alshain, plus how the nearby constellation Sagitta the Arrow is connected to the eagle. And for deep sky observers, don't miss looking for the globular cluster Messier 71. See what's up in the night sky every week with "Eyes on the Sky" videos, astronomy made easy.

 

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